/* =========================================================
   USER APP — SIDEBAR
   File: user_app/assets/css/sidebar.css

   Responsibility:
   - Application sidebar
   - Sidebar header
   - Sidebar navigation container
   - Navigation sections
   - Sidebar menu items
   - Active / hover states
   - Badges
   - Collapsed sidebar
   - Mobile drawer
   - Sidebar overlay
   - Dark theme
   - Accessibility

   Dependencies:
   - variables.css
   - reset.css
   - base.css
   - layout.css
   - header.css
   ========================================================= */


/* =========================================================
   1. SIDEBAR ROOT
   ========================================================= */

.app-sidebar {
    position: fixed;
    z-index: var(--z-sidebar, 90);

    top: var(--header-height, 64px);
    left: 0;
    bottom: 0;

    width: var(--sidebar-width, 260px);

    display: flex;
    flex-direction: column;

    background: var(--color-surface, #ffffff);
    border-right: 1px solid var(--color-border, #e2e8f0);

    color: var(--color-text, #0f172a);

    overflow: hidden;

    transition:
        width var(--transition-normal, 200ms ease),
        transform var(--transition-normal, 200ms ease),
        background-color var(--transition-normal, 200ms ease),
        border-color var(--transition-normal, 200ms ease),
        box-shadow var(--transition-normal, 200ms ease);
}


/* Sidebar below compact header */

.app-header--compact ~ .app-sidebar {
    top: 56px;
}


/* Large header */

.app-header--large ~ .app-sidebar {
    top: 76px;
}


/* =========================================================
   2. SIDEBAR INNER
   ========================================================= */

.app-sidebar__inner {
    min-height: 0;
    height: 100%;

    display: flex;
    flex-direction: column;
}


/* =========================================================
   3. SIDEBAR HEADER
   ========================================================= */

.app-sidebar__header {
    flex: 0 0 auto;

    min-height: 64px;

    display: flex;
    align-items: center;

    padding: var(--space-3, 0.75rem);

    border-bottom: 1px solid var(
        --color-border,
        #e2e8f0
    );
}


/* =========================================================
   4. SIDEBAR BRAND
   ========================================================= */

.app-sidebar__brand {
    min-width: 0;

    display: flex;
    align-items: center;

    gap: var(--space-3, 0.75rem);

    color: var(
        --color-text,
        #0f172a
    );

    text-decoration: none;
}


.app-sidebar__brand-logo {
    width: 40px;
    height: 40px;

    flex: 0 0 auto;

    display: grid;
    place-items: center;

    overflow: hidden;

    border-radius: var(
        --radius-md,
        0.625rem
    );

    background: var(
        --color-primary,
        #2563eb
    );

    color: #ffffff;
}


.app-sidebar__brand-logo img,
.app-sidebar__brand-logo svg {
    width: 100%;
    height: 100%;

    display: block;

    object-fit: contain;
}


.app-sidebar__brand-content {
    min-width: 0;

    display: flex;
    flex-direction: column;
}


.app-sidebar__brand-title {
    margin: 0;

    font-size: var(
        --font-size-sm,
        0.875rem
    );

    font-weight: var(
        --font-weight-bold,
        700
    );

    line-height: 1.25;

    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}


.app-sidebar__brand-subtitle {
    margin-top: 2px;

    color: var(
        --color-text-muted,
        #64748b
    );

    font-size: var(
        --font-size-xs,
        0.75rem
    );

    line-height: 1.25;

    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}


/* =========================================================
   5. SIDEBAR BODY
   ========================================================= */

.app-sidebar__body {
    flex: 1 1 auto;

    min-height: 0;

    overflow-x: hidden;
    overflow-y: auto;

    padding: var(--space-3, 0.75rem);

    scrollbar-width: thin;
    scrollbar-color:
        var(--color-border-strong, #cbd5e1)
        transparent;
}


.app-sidebar__body::-webkit-scrollbar {
    width: 6px;
}


.app-sidebar__body::-webkit-scrollbar-track {
    background: transparent;
}


.app-sidebar__body::-webkit-scrollbar-thumb {
    background: var(
        --color-border-strong,
        #cbd5e1
    );

    border-radius: 999px;
}


.app-sidebar__body::-webkit-scrollbar-thumb:hover {
    background: var(
        --color-text-muted,
        #64748b
    );
}


/* =========================================================
   6. SIDEBAR NAVIGATION
   ========================================================= */

.app-sidebar__nav {
    display: flex;
    flex-direction: column;

    gap: var(--space-1, 0.25rem);
}


/* =========================================================
   7. SIDEBAR SECTION
   ========================================================= */

.app-sidebar__section {
    margin: 0;
}


.app-sidebar__section + .app-sidebar__section {
    margin-top: var(--space-4, 1rem);
}


/* =========================================================
   8. SECTION TITLE
   ========================================================= */

.app-sidebar__section-title {
    display: flex;
    align-items: center;

    min-height: 28px;

    padding-inline: var(--space-3, 0.75rem);

    color: var(
        --color-text-muted,
        #64748b
    );

    font-size: 0.6875rem;

    font-weight: var(
        --font-weight-bold,
        700
    );

    line-height: 1;

    letter-spacing: 0.08em;

    text-transform: uppercase;

    white-space: nowrap;
}


/* =========================================================
   9. MENU LIST
   ========================================================= */

.app-sidebar__menu {
    margin: 0;
    padding: 0;

    list-style: none;

    display: flex;
    flex-direction: column;

    gap: 2px;
}


/* =========================================================
   10. MENU ITEM
   ========================================================= */

.app-sidebar__item {
    position: relative;

    min-width: 0;
}


/* =========================================================
   11. MENU LINK
   ========================================================= */

.app-sidebar__link {
    position: relative;

    width: 100%;
    min-height: 44px;

    display: flex;
    align-items: center;

    gap: var(--space-3, 0.75rem);

    padding: 9px 12px;

    border: 1px solid transparent;
    border-radius: var(
        --radius-md,
        0.625rem
    );

    background: transparent;

    color: var(
        --color-text-secondary,
        #475569
    );

    text-decoration: none;

    font-size: var(
        --font-size-sm,
        0.875rem
    );

    font-weight: var(
        --font-weight-medium,
        500
    );

    line-height: 1.3;

    cursor: pointer;

    transition:
        background-color var(--transition-fast, 150ms ease),
        border-color var(--transition-fast, 150ms ease),
        color var(--transition-fast, 150ms ease),
        transform var(--transition-fast, 150ms ease);
}


.app-sidebar__link:hover {
    background: var(
        --color-background-secondary,
        #f8fafc
    );

    color: var(
        --color-primary,
        #2563eb
    );
}


.app-sidebar__link:active {
    transform: translateY(1px);
}


.app-sidebar__link:focus-visible {
    outline: none;

    border-color: var(
        --color-primary,
        #2563eb
    );

    box-shadow:
        0 0 0 3px var(
            --focus-ring,
            rgba(37, 99, 235, 0.15)
        );
}


/* =========================================================
   12. ACTIVE MENU LINK
   ========================================================= */

.app-sidebar__link[aria-current="page"],
.app-sidebar__link.is-active,
.app-sidebar__item.is-active > .app-sidebar__link {
    background: var(
        --color-primary-soft,
        rgba(37, 99, 235, 0.10)
    );

    border-color: transparent;

    color: var(
        --color-primary,
        #2563eb
    );

    font-weight: var(
        --font-weight-semibold,
        600
    );
}


/* Active indicator */

.app-sidebar__link[aria-current="page"]::before,
.app-sidebar__link.is-active::before,
.app-sidebar__item.is-active > .app-sidebar__link::before {
    content: "";

    position: absolute;

    left: -1px;
    top: 50%;

    width: 3px;
    height: 22px;

    transform: translateY(-50%);

    border-radius: 0 999px 999px 0;

    background: var(
        --color-primary,
        #2563eb
    );
}


/* =========================================================
   13. MENU ICON
   ========================================================= */

.app-sidebar__icon {
    width: 20px;
    height: 20px;

    flex: 0 0 20px;

    display: grid;
    place-items: center;

    color: currentColor;
}


.app-sidebar__icon svg,
.app-sidebar__icon img {
    width: 20px;
    height: 20px;

    display: block;

    object-fit: contain;
}


/* =========================================================
   14. MENU LABEL
   ========================================================= */

.app-sidebar__label {
    min-width: 0;

    flex: 1 1 auto;

    overflow: hidden;

    white-space: nowrap;
    text-overflow: ellipsis;
}


/* =========================================================
   15. MENU BADGE
   ========================================================= */

.app-sidebar__badge {
    min-width: 20px;
    height: 20px;

    flex: 0 0 auto;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    padding-inline: 6px;

    border-radius: 999px;

    background: var(
        --color-background-tertiary,
        #f1f5f9
    );

    color: var(
        --color-text-secondary,
        #475569
    );

    font-size: 0.6875rem;

    font-weight: var(
        --font-weight-bold,
        700
    );

    line-height: 1;
}


.app-sidebar__badge--primary {
    background: var(
        --color-primary,
        #2563eb
    );

    color: #ffffff;
}


.app-sidebar__badge--success {
    background: var(
        --color-success-soft,
        rgba(34, 197, 94, 0.12)
    );

    color: var(
        --color-success,
        #16a34a
    );
}


.app-sidebar__badge--warning {
    background: var(
        --color-warning-soft,
        rgba(245, 158, 11, 0.14)
    );

    color: var(
        --color-warning,
        #d97706
    );
}


.app-sidebar__badge--danger {
    background: var(
        --color-danger-soft,
        rgba(239, 68, 68, 0.12)
    );

    color: var(
        --color-danger,
        #dc2626
    );
}


/* =========================================================
   16. NOTIFICATION DOT
   ========================================================= */

.app-sidebar__dot {
    width: 7px;
    height: 7px;

    flex: 0 0 7px;

    border-radius: 50%;

    background: var(
        --color-danger,
        #ef4444
    );
}


/* =========================================================
   17. SUBMENU TOGGLE
   ========================================================= */

.app-sidebar__toggle {
    position: relative;

    width: 100%;
    min-height: 44px;

    display: flex;
    align-items: center;

    gap: var(--space-3, 0.75rem);

    padding: 9px 12px;

    border: 1px solid transparent;
    border-radius: var(
        --radius-md,
        0.625rem
    );

    background: transparent;

    color: var(
        --color-text-secondary,
        #475569
    );

    font: inherit;
    font-size: var(
        --font-size-sm,
        0.875rem
    );

    font-weight: var(
        --font-weight-medium,
        500
    );

    text-align: left;

    cursor: pointer;

    transition:
        background-color var(--transition-fast, 150ms ease),
        color var(--transition-fast, 150ms ease),
        border-color var(--transition-fast, 150ms ease);
}


.app-sidebar__toggle:hover {
    background: var(
        --color-background-secondary,
        #f8fafc
    );

    color: var(
        --color-primary,
        #2563eb
    );
}


.app-sidebar__toggle:focus-visible {
    outline: none;

    border-color: var(
        --color-primary,
        #2563eb
    );

    box-shadow:
        0 0 0 3px var(
            --focus-ring,
            rgba(37, 99, 235, 0.15)
        );
}


.app-sidebar__toggle-icon {
    width: 20px;
    height: 20px;

    flex: 0 0 20px;

    display: grid;
    place-items: center;
}


.app-sidebar__toggle-chevron {
    width: 16px;
    height: 16px;

    flex: 0 0 16px;

    margin-left: auto;

    color: var(
        --color-text-muted,
        #64748b
    );

    transition:
        transform var(--transition-fast, 150ms ease);
}


.app-sidebar__toggle[aria-expanded="true"]
.app-sidebar__toggle-chevron {
    transform: rotate(180deg);
}


/* =========================================================
   18. SUBMENU
   ========================================================= */

.app-sidebar__submenu {
    margin: 2px 0 4px 20px;
    padding: 2px 0 2px 14px;

    list-style: none;

    border-left: 1px solid var(
        --color-border,
        #e2e8f0
    );

    display: flex;
    flex-direction: column;

    gap: 2px;
}


.app-sidebar__submenu[hidden] {
    display: none;
}


.app-sidebar__submenu-link {
    position: relative;

    min-height: 38px;

    display: flex;
    align-items: center;

    padding: 7px 10px;

    border-radius: var(
        --radius-sm,
        0.375rem
    );

    color: var(
        --color-text-secondary,
        #475569
    );

    text-decoration: none;

    font-size: var(
        --font-size-sm,
        0.875rem
    );

    line-height: 1.3;

    transition:
        background-color var(--transition-fast, 150ms ease),
        color var(--transition-fast, 150ms ease);
}


.app-sidebar__submenu-link:hover {
    background: var(
        --color-background-secondary,
        #f8fafc
    );

    color: var(
        --color-primary,
        #2563eb
    );
}


.app-sidebar__submenu-link[aria-current="page"],
.app-sidebar__submenu-link.is-active {
    background: var(
        --color-primary-soft,
        rgba(37, 99, 235, 0.10)
    );

    color: var(
        --color-primary,
        #2563eb
    );

    font-weight: var(
        --font-weight-semibold,
        600
    );
}


/* =========================================================
   19. SIDEBAR DIVIDER
   ========================================================= */

.app-sidebar__divider {
    height: 1px;

    margin: var(--space-3, 0.75rem) 0;

    background: var(
        --color-border,
        #e2e8f0
    );
}


/* =========================================================
   20. SIDEBAR FOOTER
   ========================================================= */

.app-sidebar__footer {
    flex: 0 0 auto;

    padding: var(--space-3, 0.75rem);

    border-top: 1px solid var(
        --color-border,
        #e2e8f0
    );
}


/* =========================================================
   21. SIDEBAR PROFILE CARD
   ========================================================= */

.app-sidebar__profile {
    min-width: 0;

    display: flex;
    align-items: center;

    gap: var(--space-2, 0.5rem);

    padding: 8px;

    border: 1px solid var(
        --color-border,
        #e2e8f0
    );

    border-radius: var(
        --radius-lg,
        0.75rem
    );

    background: var(
        --color-background-secondary,
        #f8fafc
    );
}


.app-sidebar__profile-avatar {
    width: 36px;
    height: 36px;

    flex: 0 0 36px;

    display: grid;
    place-items: center;

    overflow: hidden;

    border-radius: 50%;

    background: var(
        --color-primary,
        #2563eb
    );

    color: #ffffff;

    font-size: var(
        --font-size-xs,
        0.75rem
    );

    font-weight: var(
        --font-weight-bold,
        700
    );
}


.app-sidebar__profile-avatar img {
    width: 100%;
    height: 100%;

    display: block;

    object-fit: cover;
}


.app-sidebar__profile-content {
    min-width: 0;
    flex: 1 1 auto;
}


.app-sidebar__profile-name {
    display: block;

    color: var(
        --color-text,
        #0f172a
    );

    font-size: var(
        --font-size-sm,
        0.875rem
    );

    font-weight: var(
        --font-weight-semibold,
        600
    );

    line-height: 1.3;

    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}


.app-sidebar__profile-meta {
    display: block;

    margin-top: 1px;

    color: var(
        --color-text-muted,
        #64748b
    );

    font-size: var(
        --font-size-xs,
        0.75rem
    );

    line-height: 1.3;

    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}


/* =========================================================
   22. COLLAPSED SIDEBAR
   ========================================================= */

.app-shell.is-sidebar-collapsed .app-sidebar,
.app-sidebar.is-collapsed {
    width: var(
        --sidebar-collapsed-width,
        76px
    );
}


/* Hide text */

.app-shell.is-sidebar-collapsed
.app-sidebar__label,
.app-shell.is-sidebar-collapsed
.app-sidebar__brand-content,
.app-shell.is-sidebar-collapsed
.app-sidebar__section-title,
.app-shell.is-sidebar-collapsed
.app-sidebar__badge,
.app-shell.is-sidebar-collapsed
.app-sidebar__toggle-chevron,
.app-shell.is-sidebar-collapsed
.app-sidebar__profile-content,

.app-sidebar.is-collapsed
.app-sidebar__label,
.app-sidebar.is-collapsed
.app-sidebar__brand-content,
.app-sidebar.is-collapsed
.app-sidebar__section-title,
.app-sidebar.is-collapsed
.app-sidebar__badge,
.app-sidebar.is-collapsed
.app-sidebar__toggle-chevron,
.app-sidebar.is-collapsed
.app-sidebar__profile-content {
    display: none;
}


/* Center menu */

.app-shell.is-sidebar-collapsed
.app-sidebar__link,
.app-shell.is-sidebar-collapsed
.app-sidebar__toggle,

.app-sidebar.is-collapsed
.app-sidebar__link,
.app-sidebar.is-collapsed
.app-sidebar__toggle {
    justify-content: center;

    padding-inline: 8px;
}


/* Center brand */

.app-shell.is-sidebar-collapsed
.app-sidebar__header,

.app-sidebar.is-collapsed
.app-sidebar__header {
    justify-content: center;
}


/* Submenus hidden when collapsed */

.app-shell.is-sidebar-collapsed
.app-sidebar__submenu,

.app-sidebar.is-collapsed
.app-sidebar__submenu {
    display: none;
}


/* Profile compact */

.app-shell.is-sidebar-collapsed
.app-sidebar__profile,

.app-sidebar.is-collapsed
.app-sidebar__profile {
    justify-content: center;

    padding: 6px;
}


/* =========================================================
   23. COLLAPSED TOOLTIP SUPPORT
   ========================================================= */

.app-sidebar.is-collapsed
.app-sidebar__link[data-tooltip],
.app-shell.is-sidebar-collapsed
.app-sidebar__link[data-tooltip] {
    position: relative;
}


.app-sidebar.is-collapsed
.app-sidebar__link[data-tooltip]::after,
.app-shell.is-sidebar-collapsed
.app-sidebar__link[data-tooltip]::after {
    content: attr(data-tooltip);

    position: absolute;

    left: calc(100% + 10px);
    top: 50%;

    transform:
        translateY(-50%)
        translateX(-4px);

    z-index: 1000;

    padding: 7px 10px;

    border: 1px solid var(
        --color-border,
        #e2e8f0
    );

    border-radius: var(
        --radius-sm,
        0.375rem
    );

    background: var(
        --color-surface,
        #ffffff
    );

    color: var(
        --color-text,
        #0f172a
    );

    box-shadow: var(
        --shadow-md,
        0 8px 24px rgba(15, 23, 42, 0.12)
    );

    font-size: var(
        --font-size-xs,
        0.75rem
    );

    font-weight: var(
        --font-weight-medium,
        500
    );

    white-space: nowrap;

    opacity: 0;
    visibility: hidden;

    pointer-events: none;

    transition:
        opacity var(--transition-fast, 150ms ease),
        transform var(--transition-fast, 150ms ease),
        visibility var(--transition-fast, 150ms ease);
}


.app-sidebar.is-collapsed
.app-sidebar__link[data-tooltip]:hover::after,
.app-shell.is-sidebar-collapsed
.app-sidebar__link[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;

    transform:
        translateY(-50%)
        translateX(0);
}


/* =========================================================
   24. SIDEBAR OVERLAY
   ========================================================= */

.app-sidebar__overlay {
    position: fixed;
    z-index: calc(
        var(--z-sidebar, 90) - 1
    );

    inset: 0;

    background: rgba(15, 23, 42, 0.45);

    opacity: 0;
    visibility: hidden;

    pointer-events: none;

    transition:
        opacity var(--transition-normal, 200ms ease),
        visibility var(--transition-normal, 200ms ease);
}


.app-shell.is-sidebar-open
.app-sidebar__overlay,
.app-sidebar-overlay.is-visible {
    opacity: 1;
    visibility: visible;

    pointer-events: auto;
}


/* =========================================================
   25. MOBILE SIDEBAR
   ========================================================= */

@media (max-width: 900px) {

    .app-sidebar {
        top: var(--header-height, 64px);

        width: min(
            var(--sidebar-width, 260px),
            calc(100vw - 48px)
        );

        transform: translateX(-100%);

        box-shadow: none;
    }


    .app-sidebar.is-open,
    .app-shell.is-sidebar-open .app-sidebar {
        transform: translateX(0);

        box-shadow: var(
            --shadow-xl,
            0 20px 50px rgba(15, 23, 42, 0.18)
        );
    }


    /* Disable desktop collapsed width on mobile */

    .app-sidebar.is-collapsed,
    .app-shell.is-sidebar-collapsed .app-sidebar {
        width: min(
            var(--sidebar-width, 260px),
            calc(100vw - 48px)
        );
    }


    /* Restore hidden content on mobile drawer */

    .app-shell.is-sidebar-collapsed
    .app-sidebar__label,

    .app-shell.is-sidebar-collapsed
    .app-sidebar__brand-content,

    .app-shell.is-sidebar-collapsed
    .app-sidebar__section-title,

    .app-shell.is-sidebar-collapsed
    .app-sidebar__badge,

    .app-shell.is-sidebar-collapsed
    .app-sidebar__toggle-chevron,

    .app-shell.is-sidebar-collapsed
    .app-sidebar__profile-content,

    .app-sidebar.is-collapsed
    .app-sidebar__label,

    .app-sidebar.is-collapsed
    .app-sidebar__brand-content,

    .app-sidebar.is-collapsed
    .app-sidebar__section-title,

    .app-sidebar.is-collapsed
    .app-sidebar__badge,

    .app-sidebar.is-collapsed
    .app-sidebar__toggle-chevron,

    .app-sidebar.is-collapsed
    .app-sidebar__profile-content {
        display: revert;
    }


    .app-shell.is-sidebar-collapsed
    .app-sidebar__link,

    .app-shell.is-sidebar-collapsed
    .app-sidebar__toggle,

    .app-sidebar.is-collapsed
    .app-sidebar__link,

    .app-sidebar.is-collapsed
    .app-sidebar__toggle {
        justify-content: flex-start;

        padding-inline: 12px;
    }


    .app-shell.is-sidebar-collapsed
    .app-sidebar__header,

    .app-sidebar.is-collapsed
    .app-sidebar__header {
        justify-content: flex-start;
    }


    .app-shell.is-sidebar-collapsed
    .app-sidebar__submenu,

    .app-sidebar.is-collapsed
    .app-sidebar__submenu {
        display: flex;
    }


    .app-shell.is-sidebar-collapsed
    .app-sidebar__profile,

    .app-sidebar.is-collapsed
    .app-sidebar__profile {
        justify-content: flex-start;

        padding: 8px;
    }


    /* Disable collapsed tooltips on mobile */

    .app-sidebar.is-collapsed
    .app-sidebar__link[data-tooltip]::after,

    .app-shell.is-sidebar-collapsed
    .app-sidebar__link[data-tooltip]::after {
        display: none;
    }
}


/* =========================================================
   26. SMALL MOBILE
   ========================================================= */

@media (max-width: 640px) {

    .app-sidebar {
        top: 58px;

        width: min(
            var(--sidebar-width, 260px),
            calc(100vw - 32px)
        );
    }


    .app-sidebar__header {
        min-height: 58px;

        padding: var(--space-2, 0.5rem);
    }


    .app-sidebar__body {
        padding: var(--space-2, 0.5rem);
    }


    .app-sidebar__footer {
        padding: var(--space-2, 0.5rem);
    }


    .app-sidebar__link,
    .app-sidebar__toggle {
        min-height: 46px;

        padding: 10px 12px;
    }
}


/* =========================================================
   27. SAFE AREA